DE102008038556A1 - Nonwoven fabric for use as a moisture-permeable, microporous semi-luxury packaging material - Google Patents

Nonwoven fabric for use as a moisture-permeable, microporous semi-luxury packaging material Download PDF

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Publication number
DE102008038556A1
DE102008038556A1 DE102008038556A DE102008038556A DE102008038556A1 DE 102008038556 A1 DE102008038556 A1 DE 102008038556A1 DE 102008038556 A DE102008038556 A DE 102008038556A DE 102008038556 A DE102008038556 A DE 102008038556A DE 102008038556 A1 DE102008038556 A1 DE 102008038556A1
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Prior art keywords
nonwoven fabric
fabric according
binder
fibers
nonwoven
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DE102008038556A
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German (de)
Inventor
Hagen Dr. Hohmuth
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ESWEGEE VLIESSTOFF GmbH
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ESWEGEE VLIESSTOFF GmbH
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Priority to DE102008038556A priority Critical patent/DE102008038556A1/en
Priority to EP09163337.0A priority patent/EP2138056B1/en
Publication of DE102008038556A1 publication Critical patent/DE102008038556A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D04H1/4258—Regenerated cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/49—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/544—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/68—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions the bonding agent being applied in the form of foam

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

Die Erfindung betrifft einen Vliesstoff zur Verwendung als feuchtedurchlässiges, mikroporöses Genussmittelverpackungsmaterial, der aus einem Grundvlies aus Viskosefasern, der mittels Wasserstrahl vorverfestigt ist, besteht und einen reduzierten Anteil an Bindemitteln und/oder schmelzbaren Fasern aus einem thermoplastischen Polymermaterial aufweist.The invention relates to a nonwoven fabric for use as a moisture-permeable, microporous semi-liquid packaging material consisting of a viscose rayon non-woven fabric pre-consolidated by water jet and having a reduced proportion of binders and / or fusible fibers of a thermoplastic polymeric material.

Description

Die Erfindung betrifft einen Vliesstoff zur Verwendung als feuchtedurchlässiges, mikroporöses Genussmittelverpackungsmaterial, gemäß Oberbegriff des Patentanspruchs 1.The This invention relates to a nonwoven fabric for use as a moisture impermeable, Microporous semi-luxury packaging material, according to the generic term of claim 1

Neben der allgemein bekannten Art des Genusses von Tabak in Form von Zigaretten, Pfeifen, Schnupftabak oder Kautabak, existiert eine weitere Form des oralen Tabakgenusses, nämlich Snus. Diese vor allem in Skandinavien verbreitete Form des Oraltabaks, ist ein mit Salzen versetzter Tabak, der unter die Oberlippe gesteckt wird.Next the well-known way of enjoying tobacco in the form of cigarettes, Whistling, snuff or chewing tobacco, another form exists of oral tobacco pleasure, namely snus. This, above all In Scandinavia widespread form of oral tobacco, is one with salts staggered tobacco, which is inserted under the upper lip.

Es wird zwischen losem Snus und portionsverpacktem Snus unterschieden, wobei der Lössnus, als feuchtes Pulver in Dosen verpackt, vor dem Gebrauch mit den Fingern oder anderen Hilfsmitteln portioniert werden muss. Der Portionsnus hingegen ist bereits in kleinen Beuteln (ähnlich kleinen Teebeuteln) abgepackt und zum direkten Gebrauch geeignet, d. h. der mit dem Tabak befüllte Beutel wird vollständig unter die Oberlippe gesteckt.It is distinguished between loose snus and portioned snus, the loessnus, canned as a moist powder, portioned with fingers or other aids before use must become. The portion nus, however, is already in small bags (similar to small teabags) packaged and direct Use suitable, d. H. the bag filled with the tobacco is placed completely under the upper lip.

In der WO 2008/056135 A2 werden die Produktion, Zusammensetzung und die Verpackung eines Oraltabaks offenbart. Es wird aufgeführt, dass der abgewogene Tabak beispielsweise in einer Celluloseacetat-Verpackung beutelförmig versiegelt werden kann.In the WO 2008/056135 A2 the production, composition and packaging of an oral tobacco are revealed. It is stated that the weighed tobacco can be bag-shaped, for example, in a cellulose acetate package.

Bei zur Abpackung des Portionsnus verwendeten Vliesstoffen handelt es sich außerdem oftmals um gebundene Vliesstoffe aus 100% Viskosefasern (als längsorientierter Faserflor). Diese werden mit einem thermoplastischen Bindemittel, welches als wässrige, verschäumte Polymerdispersion appliziert wird, gebunden.at Nonwovens used to package the portion nus are They are also often 100% bonded nonwovens. Viscose fibers (as longitudinally oriented pile). These are treated with a thermoplastic binder which is aqueous, foamed polymer dispersion is applied, bound.

Derartige Vliesstoffe können einen Bindemittelfeststoffanteil von 20–70 enthalten und zeigen mitunter stark abrasives Verhalten, das bei der Verarbeitung des Materials zu Problemen führen kann. Es wird maßgeblich durch die Menge des verwendeten Bindemittels bestimmt.such Nonwovens may contain a proportion of binder solids 20-70 sometimes contain and show very abrasive behavior, that cause problems when processing the material can. It will be determined by the amount of binder used certainly.

Bisher bekannte Vliesstoffe zur Verwendung als Snusverpackungsmaterial können mit dem derzeitigen Stand der Technik nur in weiß hergestellt werden. In diesem Zusammenhang verstärkt dies das Sichtbarwerden leichter Abfärbungen des Oraltabaks auf das Vliesmaterial.So far known nonwovens for use as snus packaging material can only be made in white with the current state of the art. In this context, this increases the visibility slight discoloration of the oral tobacco on the nonwoven material.

Vliesstoffe zur Verpackung von Oraltabak müssen vor allem über eine gute Heißsiegelfähigkeit verfügen. Ein sehr gut siegelfähiges Vlies ist häufig so klebrig, dass es bei der Herstellung Schmutzpartikel sammelt und somit unverkäuflich wird. Außerdem kann ein Zusammen- bzw. Ankleben des Vliesstoffes an der Rolle auftreten, sodass es nicht mehr getrennt werden kann.nonwovens especially for packaging of oral tobacco must above have a good heat sealability. A very good sealable fleece is often so sticky that it collects dirt particles during manufacture and thus becomes unsalable. In addition, an or sticking of the nonwoven fabric to the roll occur, so it can not be separated anymore.

Eine beispielhafte Maschine zur Herstellung einzelner Snuspäckchen wird in der WO 2008/062301 A1 dargestellt. Zunächst wird das Tabakgemisch über einen Rotationsteller portioniert und zum Verpackungsapparat transportiert. Dort werden die Snusportionen mittels einer Düse in eine Endlosbahn von Verpackungsmaterial gepustet. Das Verpackungsmaterial wird dabei von einer Rolle abgewickelt und um einen Dorn positioniert. Die Kanten des Gewebes werden in Längsrichtung mittel Ultraschallschweißelementen versiegelt. Unterhalb des Dorns ist ein weiteres Ultraschallschweißelement platziert, um die Endlosverpackungsbahn nach dem Befüllen mit einzelnen Tabakportionen, in kleine Snuspäckchen zu unterteilen.An exemplary machine for making individual Snuspäckchen is in the WO 2008/062301 A1 shown. First, the tobacco mixture is portioned via a rotary plate and transported to the packaging apparatus. There, the snus portions are blown by means of a nozzle in an endless web of packaging material. The packaging material is unwound from a roll and positioned around a mandrel. The edges of the fabric are sealed longitudinally by means of ultrasonic welding elements. Below the mandrel, another ultrasonic welding element is placed to divide the endless wrapping web into small snus packets after filling with individual tobacco portions.

Um das soeben dargelegte Heißversiegelverfahren weiterhin bei der Abpackung von Snusportionen anwenden zu können und gleichzeitig auf Vliesstoffe mit hohen Bindemittelanteilen und den damit einhergehenden Verfahrensproblemen auf Grund des abrasiven Verhaltens und der starken Klebrigkeit der bekannten Vliesstoffe verzichten zu können, ist es die Aufgabe der vorliegenden Erfindung einen weiterentwickelten Vliesstoff anzugeben, der über eine gute Heißsiegelfähigkeit verfügt ohne mit den soeben genannten nachteiligen Materialeigenschaften behaftet zu sein. Zudem soll es mit dem anzugebenden Vliesstoff ermöglicht werden, Verpackungsmaterial bereitzustellen, das farbig ausgeführt ist oder eingefärbt werden kann.Around the heat-sealing method just outlined to use in the packaging of snus portions and at the same time nonwovens with high binder levels and the associated process problems due to the abrasive Behavior and the strong stickiness of the known nonwovens to be able to do without, it is the task of the present Invention to provide a further developed nonwoven fabric, which has a good heat sealability without afflicted with the just mentioned adverse material properties to be. In addition, it should be possible with the specified nonwoven fabric to provide packaging material which is colored is or can be colored.

Die Lösung der Aufgabe der Erfindung erfolgt durch einen Vliesstoff zur Verwendung als feuchtedurchlässiges, mikroporöses Genussmittelverpackungsmaterial gemäß Merkmalskombination nach Patentanspruch 1, wobei die Unteransprüche mindestens zweckmäßige Ausgestaltungen und Weiterbildungen darstellen.The Solution of the object of the invention is carried out by a nonwoven fabric for use as a moisture-permeable, microporous Semi-luxury packaging material according to feature combination according to Claim 1, wherein the dependent claims at least expedient Represent refinements and developments.

Erfindungsgemäß besteht der Vliesstoff zur Verwendung als feuchtedurchlässiges, mikroporöses Genussmittelverpackungsmaterial aus einem Grundvlies aus Viskosefasern, das z. B. mechanisch, chemisch oder mittels Wasserstrahl vorverfestigt ist und einen reduzierten Anteil an Bindemitteln und/oder schmelzbaren Fasern aus einem thermoplastischen Polymermaterial aufweist.According to the invention the nonwoven fabric for use as a moisture permeable, microporous semi-luxury packaging material from a basic fleece of viscose fibers, the z. B. mechanically, chemically or by water jet is pre-consolidated and a reduced proportion of binders and / or fusible fibers of a thermoplastic polymer material having.

Aufgrund der Vorverfestigung z. B. mittels Wasserstrahl, verfügt das herzustellende Vlies zum einen über die benötigte Porosität, zur Verwendung als Verpackungsmaterial für Oraltabak und zum anderen ist es abriebfester und günstigern in den Materialkosten als bisher verwendete Verpackungsmaterialien.by virtue of the preconsolidation z. B. by water jet, has the fabric to be produced on the one hand over the required Porosity, for use as packaging material for Oral tobacco and on the other hand, it is more resistant to abrasion and auspicious in the material costs than previously used packaging materials.

Die benötigte Heißsiegelfähigkeit des Vliesstoffes kann einerseits aus der Beimischung von Polymerfasern in das Grundvlies gewonnen werden. In diesem Fall sind die Polymerfasern Bestandteil des mittels Wasserstrahl vorverfestigten Grundmaterials.The required heat sealability of the nonwoven fabric on the one hand from the admixture of polymer fibers in the ground fleece be won. In this case, the polymer fibers are part the pre-consolidated by water jet base material.

Zweckmäßigerweise handelt es sich bei den Polymerfasern um Polypropylenfasern.Conveniently, If the polymer fibers are polypropylene fibers.

In einer besonders bevorzugten Ausführungsform liegt ein Fasergemenge aus Polypropylenfasern und Viskosefasern vor, welches mittels der Methode der Wasserstrahlverfestigung zu einem Vlies verarbeitet wird.In In a particularly preferred embodiment, there is a quantity of fiber made of polypropylene fibers and viscose fibers, which by means of the method the hydroentanglement is processed into a nonwoven.

Der hergestellte Vliesstoff weist ein Flächengewicht von im Wesentlichen 25 g/m2 auf und besteht aus einem Fasermaterial, welches aus 70% Viskosefasern und 30% Polypropylenfasern besteht.The nonwoven fabric produced has a basis weight of substantially 25 g / m 2 and consists of a fiber material which consists of 70% viscose fibers and 30% polypropylene fibers.

Andererseits kann die benötigte Heißsiegelfähigkeit durch Einsatz eines Bindemittels gewonnen werden, das nicht oder lediglich teilvernetzt ist und aus einer auf des Grundvlies aufgebrachter Polymerdispersion gewonnen wird.on the other hand can provide the needed heat sealability be obtained by using a binder that is not or is only partially crosslinked and applied from a on the ground fleece Polymer dispersion is obtained.

Aufgrund der gezielten Vorverfestigung des Vliesstoffs z. B. mittels Wasserstrahlen wird nur noch ein reduzierter Anteil eines derartigen Bindemittels benötigt, wobei das Bindemittel mindestens auf einer Seite des Grundvlieses aufgetragen wird.by virtue of the targeted pre-consolidation of the nonwoven z. B. by means of water jets only a reduced proportion of such a binder is needed, wherein the binder is at least on one side of the base web is applied.

Eine bevorzugte Methode zur Aufbringung des Bindemittels stellt die Schaumimprägnierung des Grundvlieses mit der Polymerdispersion dar. Dabei kann die verschäumte Polymerdispersion von einer oder von beiden Seiten mittels eines speziellen Rakelsystems aufgetragen werden.A preferred method of applying the binder is foam impregnation the Grundvlieses with the polymer dispersion. The foamed Polymer dispersion from one or both sides by means of a special doctor blade system are applied.

Ein einseitiger Auftrag des Schaums kann so erfolgen, dass der Schaum das Vlies nicht vollständig durchdringt.One one-sided application of the foam can be done so that the foam the fleece does not penetrate completely.

Vorzugsweise erhöht die Imprägnierung oder Beschichtung des Grundvliesmaterials das Flächengewicht um bis zu 5 g/m2. Dies ist eine erhebliche Verminderung des Bindemittelanteils, da der Binder nicht mehr primär dazu dient die Fasern zusammenzuhalten, sondern nur bzgl. der gewünschten Heißsiegelfähigkeit als Klebstoff fungiert. Bei den bislang bekannten Vliesstoffen die bis zu 30–40% aus Polymer bestehen und eine Flächenmasse von 24–30 g/m2 aufweisen, muss folglich mit einer Bindemittelmasse von mindestens 10 g/m2 gerechnet werden.Preferably, the impregnation or coating of the base nonwoven material increases the basis weight by up to 5 g / m 2 . This is a significant reduction in binder content because the binder is no longer primarily used to hold the fibers together, but only functions as an adhesive with respect to the desired heat sealability. In the previously known nonwovens which consist of up to 30-40% of polymer and have a basis weight of 24-30 g / m 2 , must therefore be expected with a binder mass of at least 10 g / m 2 .

Als geeigneter polymerer Binder kann zum einen rein thermoplastischer Binder auf Basis von Polyacrylaten verwendet werden. Zum anderen ist der Einsatz von vernetzbaren Systemen auf Basis eine Vinylacetat-Copolymers möglich.When suitable polymeric binder can on the one hand purely thermoplastic Binders based on polyacrylates are used. On the other hand is the use of crosslinkable systems based on a vinyl acetate copolymer possible.

Ein besonderer Vorteil des beschriebenen Vliesstoffs, liegt darin, dass dieser eingefärbt werden kann. Bevorzugt kann dies in den Farben schwarz oder braun, aber auch anderen Farben erfolgen. Die Farben schwarz oder braun sind von besonderem Vorteil, da der verwendete Oraltabak in diesem Farbsegment auf den Vliesstoff abfärben kann. Bei einem derartig gefärbten Vlies sind diese Abfärbungen nicht mehr sichtbar. Zudem können auffällig bunt eingefärbte Oraltabakverpackungen, wie rot oder grün, aus vermarktungstechnischen Gründen verwendet werden, um sich von Wettbewerbsprodukten eindeutig abheben zu können.One particular advantage of the described nonwoven fabric, is that this can be colored. This may preferably be in the Colors are black or brown, but also other colors. The colors black or brown are of particular advantage, since the used Rub off oral tobacco in this color segment onto the nonwoven fabric can. In such a dyed fleece are these discoloration not visible anymore. In addition, strikingly colorful colored oral tobacco packaging, such as red or green used for marketing purposes clearly distinguish themselves from competitive products.

Der erfindungsgemäße Vliesstoff kann bei der Produktion von Snusverpackungen mit den bereits bekannten Verpackungsautomaten verwendet werden.Of the Nonwoven fabric according to the invention can during production of snus packaging with the already known packaging machines be used.

Die Erfindung soll nachstehend anhand zweier Ausführungsbeispielen näher erläutert werden.The Invention will be described below with reference to two embodiments be explained in more detail.

In einem ersten Ausführungsbeispiel sind 25 g/m2 Flächengewicht Viskosefasern nach dem Verfahren der Wasserstrahlverfestigung zu Vlies verarbeitet. Dieses wird mittels eines Schauminjektors einseitig mit einer Polymerdispersion beschichtet, sodass sich eine Feststoffauflage von 5 g/m2 ergibt. An den Schaumauftrag schließt sich ein Trocknungsprozess in einem Bandtrockner an. In diesem Fall ist es auch möglich, das wasserstrahlvorverfestigte Vlies beidseitig mit der Polymerdispersion zu beschichten, sodass sich trotzdem nur eine Gesamtfeststoffauflage von 5 g/m2 ergibt.In a first embodiment, 25 g / m 2 basis weight of viscose fibers are processed by the method of hydroentanglement to nonwoven. This is coated on one side with a polymer dispersion by means of a foam injector so that a solids deposit of 5 g / m 2 results. The foam application is followed by a drying process in a belt dryer. In this case, it is also possible to coat the water-jet prebonded nonwoven on both sides with the polymer dispersion, so that nevertheless only a total solids deposit of 5 g / m 2 results.

In einem weiteren Ausführungsbeispiel wird 25 g/m2 Fasermaterial, welches aus 70% Viskosefasern und 30% Polypropylenfasern besteht, durch Wasserstrahlverfestigung zu einem Vlies verarbeitet und anschließend getrocknet. Es muss kein weiterer Auftrag von Bindemitteln erfolgen. Die Heißsiegelfähigkeit des Materials wird aus den Polypropylenfasern gewonnen, die beispielsweise bei der Bearbeitung mit einem Ultraschallschweißgerät für eine Versiegelung des Snusbeutels sorgen.In a further embodiment, 25 g / m 2 fiber material, which consists of 70% viscose fibers and 30% polypropylene fibers, processed by hydroentanglement to a nonwoven and then dried. There is no need for another application of binders. The heat-sealability of the material is obtained from the polypropylene fibers, which provide, for example, when processing with an ultrasonic welder for sealing the snus bag.

Die Einfärbung des Vliesstoffs kann über die Bindemitteldispersion vorgenommen werden. Hierbei kommen selbstverständlich lebensmittelverträgliche Farbstoffe zur Anwendung. Um die gewünschte Farbigkeit zu erhalten, besteht die Möglichkeit, bereits gefärbte Fasern einzusetzen und ein farbloses Bindemittel zu nutzen. Bei dem Einsatz einer farbneutralen oder weißen Faser kann zur Färbung das eingefärbte Bindemittel benutzt werden. Es ist jedoch auch eine Kombination des Einsatzes einer farbigen Faser mit einem Bindemittel, das Farbstoffe enthält, denkbar.The Dyeing of the nonwoven fabric may be via the binder dispersion be made. Of course, food-compatible dyes are used for use. To get the desired color, there is the possibility of already dyed fibers to use and to use a colorless binder. In use a colorless or white fiber may be used for staining the colored binder can be used. However, it is also a combination of the use of a colored fiber with a Binder containing dyes conceivable.

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • - WO 2008/056135 A2 [0004] WO 2008/056135 A2 [0004]
  • - WO 2008/062301 A1 [0009] WO 2008/062301 A1 [0009]

Claims (15)

Vliesstoff zur Verwendung als feuchtedurchlässiges, mikroporöses Genussmittelverpackungsmaterial, dadurch gekennzeichnet, dass ein vorverfertigtes Grundvlies aus Viskosefasern einen reduzierten Anteil an Bindemitteln und/oder schmelzbaren Fasern aus einem thermoplastischen Polymermaterial aufweist.Nonwoven fabric for use as a moisture-permeable, microporous semi-finished food packaging material, characterized in that a prefabricated base web of viscose fibers has a reduced proportion of binders and / or fusible fibers of a thermoplastic polymer material. Vliesstoff nach Anspruch 1, dadurch gekennzeichnet, dass das Grundvlies Polymerfasern aufweist, welche Bestandteil eines vorzugsweise mittels Wasserstrahl vorzuverfestigenden Materials sind.Nonwoven fabric according to claim 1, characterized that the base fleece comprises polymer fibers which form part of a preferably by water jet vorzuverfestigenden material are. Vliesstoff nach Anspruch 2, dadurch gekennzeichnet, dass dieser Polypropylenfasern enthält.Nonwoven fabric according to claim 2, characterized that it contains polypropylene fibers. Vliesstoff nach Anspruch 3, dadurch gekennzeichnet, dass ein Fasergemenge aus Polypropylenfasern und Viskosefasern vorliegt.Nonwoven fabric according to claim 3, characterized that a fiber amount of polypropylene fibers and viscose fibers is present. Vliesstoff nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass dieser ein Flächengewicht von im Wesentlichen 24 bis 30 g/m2 aufweist und aus einem Fasermaterial besteht, welches 60% bis 70% Viskosefasern und 30% bis 40% Polypropylenfasern aufweist.Nonwoven fabric according to one of the preceding claims, characterized in that it has a basis weight of substantially 24 to 30 g / m 2 and consists of a fiber material which comprises 60% to 70% viscose fibers and 30% to 40% polypropylene fibers. Vliesstoff nach Anspruch 1, dadurch gekennzeichnet, dass das eingesetzte Bindemittel nicht oder lediglich teilvernetzt ist und aus einer aufgebrachten Polymerdispersion gewonnen wird.Nonwoven fabric according to claim 1, characterized that the binder used is not or only partially crosslinked is and is obtained from an applied polymer dispersion. Vliesstoff nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass das Bindemittel auf mindestens einer Seite des Grundvlieses befindlich ist.Nonwoven fabric according to one of the preceding claims, characterized in that the binder is at least one Side of the ground fleece is located. Vliesstoff nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass das Bindemittel mittels Schaumimprägnierung in das Grundvlies eingebracht ist.Nonwoven fabric according to one of the preceding claims, characterized in that the binder by means of foam impregnation is introduced into the ground fleece. Vliesstoff nach Anspruch 8, dadurch gekennzeichnet, dass das verschäumte Bindemittel mittels eines Rakelsystems aufgetragen wird.Nonwoven fabric according to claim 8, characterized that the foamed binder by means of a doctor blade system is applied. Vliesstoff nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass im Ergebnis der Imprägnierung oder Beschichtung das Flächengewicht des Grundvliesmaterials sich um bis zu 5 g/m2 erhöht.Nonwoven fabric according to claim 8 or 9, characterized in that, as a result of the impregnation or coating, the basis weight of the base nonwoven material increases by up to 5 g / m 2 . Vliesstoff nach einem der Ansprüche 6 bis 10, dadurch gekennzeichnet, dass es sich bei dem Bindemittel um ein thermoplastisches Bindemittel auf Basis von Polyacrylaten handelt.Nonwoven fabric according to one of claims 6 to 10, characterized in that it is at the binder to a thermoplastic binder based on polyacrylates is. Vliesstoff nach einem der Ansprüche 6 bis 10, dadurch gekennzeichnet, dass es sich bei dem Bindemittel um ein vernetzbares Bindemittel auf Basis eines Vinylacet-Copolymers handelt.Nonwoven fabric according to one of claims 6 to 10, characterized in that it is at the binder to a crosslinkable binder based on a vinylacet copolymer is. Vliesstoff nach einem der vorangegangen Ansprüche, dadurch gekennzeichnet, dass der Vliesstoff eingefärbt wird.Nonwoven fabric according to one of the preceding claims, characterized in that the nonwoven fabric dyed becomes. Vliesstoff nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass die eingesetzten Viskosefasern als Ausgangsstoff farbig sind.Nonwoven fabric according to one of claims 1 to 12, characterized in that the viscose fibers used as starting material are colored. Vliesstoff nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass dem Bindemittel ein lebensmittelechter Farbstoff zugeführt ist.Nonwoven fabric according to one of claims 1 to 12, characterized in that the binder is a food Dye is supplied.
DE102008038556A 2008-06-26 2008-08-20 Nonwoven fabric for use as a moisture-permeable, microporous semi-luxury packaging material Ceased DE102008038556A1 (en)

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